Traffic flow data collection agents
First Claim
Patent Images
1. A navigation system comprising:
- a receiver to receive updated route speed information;
an input device to receive a destination point from a driver;
a GPS locator to identify the position of the receiver;
a computational system to select a fastest route from the position of the receiver to the destination point using the updated route speed information; and
, an output device to communicate the fastest route to the driver.
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Abstract
A method and apparatus to compute a fastest route is described. The method uses the speed of a plurality of informer vehicles as data collection agents to summarize traffic conditions. A central processing point collects the data. Navigation systems in receiving vehicles use the summarized traffic conditions data to generate faster routes from a current location to a destination.
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Citations
27 Claims
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1. A navigation system comprising:
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a receiver to receive updated route speed information;
an input device to receive a destination point from a driver;
a GPS locator to identify the position of the receiver;
a computational system to select a fastest route from the position of the receiver to the destination point using the updated route speed information; and
,an output device to communicate the fastest route to the driver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A system for improving traffic flow comprising:
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a receiving unit for receiving transmission signals from a plurality of vehicles, each vehicle transmitting a location and a speed;
a processing unit that processes the location and speed of each vehicle to determine a route speeds at various points on streets in a region; and
,a transmitting unit to transmit route speed information at the various points to a plurality of navigation units. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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23. A method of computing a fastest route in a receiving vehicle from a current location of the receiving vehicle to a destination comprising:
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determining a current location using a GPS system;
receiving information on a destination point;
receiving updated route speed information; and
,computing a fastest route from the current location to the destination point taking into account the updated route speed information. - View Dependent Claims (24, 25, 26, 27)
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Specification